Polish testsupport.junit.platform package

See gh-17524

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/junit/platform/Launcher.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -37,11 +37,6 @@ public class Launcher extends ReflectiveWrapper {
 		this.instance = factoryClass.getMethod("create").invoke(null);
 	}
 
-	public TestPlan discover(LauncherDiscoveryRequest request) throws Throwable {
-		return new TestPlan(getClassLoader(),
-				this.type.getMethod("discover", request.type).invoke(this.instance, request.instance));
-	}
-
 	public void registerTestExecutionListeners(SummaryGeneratingListener listener) throws Throwable {
 		Object listeners = Array.newInstance(this.testExecutionListenerType, 1);
 		Array.set(listeners, 0, listener.instance);

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/junit/platform/LauncherDiscoveryRequest.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/junit/platform/LauncherDiscoveryRequestBuilder.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/junit/platform/ReflectiveWrapper.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/junit/platform/SummaryGeneratingListener.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/junit/platform/TestExecutionSummary.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/junit/platform/TestPlan.java

-/*
- * Copyright 2012-2018 the original author or authors.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      https://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.springframework.boot.testsupport.junit.platform;
-
-/**
- * Reflective mirror of JUnit 5's {@code TestPlan}.
- *
- * @author Phillip Webb
- * @since 2.2.0
- */
-public class TestPlan extends ReflectiveWrapper {
-
-	final Object instance;
-
-	TestPlan(ClassLoader classLoader, Object instance) throws Throwable {
-		super(classLoader, "org.junit.platform.launcher.TestPlan");
-		this.instance = instance;
-	}
-
-}

spring-boot-project/spring-boot-tools/spring-boot-test-support/src/main/java/org/springframework/boot/testsupport/junit/platform/package-info.java

 /*
- * Copyright 2012-2018 the original author or authors.
+ * Copyright 2012-2019 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -15,7 +15,7 @@
  */
 
 /**
- * Reflective mirror of JUnit 5 classes required to workaround shurefire bug
+ * Reflective mirror of JUnit 5 classes required to workaround surefire bug
  * {@code SUREFIRE-1679}.
  */
 package org.springframework.boot.testsupport.junit.platform;